Reptilia - Ichthyosauria - Mixosauridae

Alternative combinations: Contectopalatus atavus, Ichthyosaurus atavus, Mixosaurus atavus

Belongs to Phalarodon according to J. Liu et al. 2013

Sister taxa: Phalarodon callawayi, Phalarodon fraasi, Phalarodon major, Phalarodon nordenskioeldii

Type specimen: GPIT/RE/411 (lectotype), a partial skull. Its type locality is Calw-Althengstett, which is in a Pelsonian marine horizon in Germany.